> I changed the screen mode back to 5k as when its in the tk mode Can you explain what you mean there?
> Should I try adjust the file with the resolution for the screen ?5120 x 1440 (32:9) Yes it's worth a try. Although drm_info isn't listing 5K as supported by the kernel, the kernel might also change its mind when maxbpc is reduced. Please also try with <maxbpc>6</maxbpc>. If that doesn't work then the only remaining options are: * Try the latest graphics test kernel (https://kernel.ubuntu.com/mainline/drm-tip/current/amd64/) and if the bug still occurs then it's time to report an upstream bug at https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/ * Replace the USB-C cable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077766 Title: [i915] Dell Ultrasharp 4919DW only achieves half of native resolution To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2077766/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs